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COSTWAY COSTWAY Split Air Conditioner Inverter 9000 BTU, 3.4 kW, quiet operation – Air Conditioners

COSTWAY

COSTWAY Split Air Conditioner Inverter 9000 BTU, 3.4 kW, quiet operation

⭐ 4.6 out of 5 · 8 reviews · Item no.: COSTWAY35296

Split air conditioner with 9,000 BTU. The COSTWAY Split Air Conditioner Inverter 9000 BTU is a split system: the compressor sits outside, with only the indoor unit staying in the room.

899,00 €

incl. VAT Shipping costs

✓ In stock – free standard delivery (3–5 days)

1

Free standard delivery (3–5 days) · Express €70 (24–48 h)

14-day return policy, no reason required

Secure payment methods
  • Vorkasse per Überweisungfree of charge
  • VISAAMERICANEXPRESSKreditkartefree of charge

Product details & service

What makes this product stand out?

The COSTWAY Split Air Conditioner Inverter 9000 BTU is a split system: the compressor sits outside, with only the indoor unit staying in the room. That's the key difference from a portable monoblock unit: with no compressor in the room it stays quiet, and with no exhaust hose there's no need to leave a window ajar — which would otherwise let in exactly the warm air you just pushed out. The system delivers 9,000 BTU (2,600 watts cooling capacity). That reliably cools a room of around 25 to 35 m². Worth considering before buying: installing a split system with a permanently routed refrigerant line requires a certified specialist installer in Germany. Pre-charged quick-connect sets are exempt from this.

What does this product come with?

  • ✓ Split air conditioner
  • ✓ 9,000 BTU cooling capacity
  • ✓ 2,600 watts

Certification & sources

Customer reviews

4.6

8 reviews

5 stars5
4 stars3
3 stars0
2 stars0
1 stars0

  • 10 July 2026

    Gut verpackt angekommen. Nur Anleitung ist dürftig

    Oliver V., Ludwigshafen

  • Zufrieden

    14 March 2026

    Bis jetzt alles gut!

    Bernd P., Konz

  • Sehr zufrieden

    9 January 2026

    Passt so, läuft zuverlässig

    Bernd P., Stuttgart

  • Alles gut

    4 November 2025

    Empfehlenswert, nur Verpackung war lädiert

    Elke G., München

  • Super

    1 October 2025

    Alles bestens, nur etwas laut.

    Markus M., Dresden

  • Zufrieden

    28 May 2025

    wie beschrieben.

    Frank N., Wuppertal

  • Super

    23 March 2025

    Alles bestens

    Daniel V., Wiesbaden

  • 24 January 2025

    Nichts zu meckern.

    Gabriele H., Karlsruhe

All 8 reviews — scroll inside the box

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